Improvement in clevises



J. SIMPSON.

Olevis.

ENTO'R WITNESSES AT'ITO R N EY'S,

N.PETERS, PHOTO-LZTHOGRAFHER, WASHINGTON. D. C.

UNITED STATES PATENT OFFICE.

JOHN SIMPSON, on CLEVELAND, OHIO.

IMPROVEMENT IN CLEVISES.

Specification forming part of Letters Patent N0. 214,793, dated April 29, 1879; application filed February 21, 1879.

To all whom it may concern:

Be it known that I, JOHN SIMPSON, of Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new anduseful Improvements in Olevises; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawing, which forms part of this specification.

My invention relates to clevises for plows and other agricultural implements and it consists in the parts and combination of parts hereinafter described and claimed.

, In the drawing, the figure shows an isometric view of a clevis constructed according to my invention.

A is the end of the plow-beam, for instance. B is a vertical clevis, and O a horizontal clevis. The clevis B is attached to the beam A by a vertical bolt, B passing through the beam; and the front of this clevis is provided with a series of holes, B or their equivalent,

whereby is provided a number of places of attachment. This clevis is intended for the vertical adjustment of the beam, so that in case of a plow a lighter or deeper furrow would be out. i

If adjustment is made at the upper portion of the clevis B, the beam A will be dropped and a deeper furrow out; and if the lower adjustment be used, a reverse effect will follow.

B is a device for holding the coupling-pin D, which unites the clevises B and O in the manner as shown in the drawing. The clevis G is designed to regulate the width of furrow in case of a plow, or to regulate the line of draft; and this is gaged and determined by the relative positions of the clevises B and O as fixed by the pin D.

the two clevises together after they are adj usted in any desired relative position.

What I claim is The combination, with a horizontal clevis, of a vertical clevis provided with two horizontal arms, which embrace the former, and a bolt which passes through suitable holes formed in said arms as it fastens the clevises together in any desired relative lateral adjustment, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN SIMPSON.

Witnesses JNo. QROWELL, Jr. F. O. MGGLEARY. 

